A KYTRON is a small autonomous vehicle. Its name comes from KYBERNETIK (German for cybernetics) and ELEKTRONIK (German for electronics).

Another way to define a KYTRON would be as a small electro-mechanical device mimicking some aspects of natural life.

Finally a KYTRON could be described as a small mobile robot doing nothing meaningful except keeping itself happy...

What does a KYTRON do?
A KYTRON drives around, looks for light and tries to avoid obstacles. With enough light from the environment it is able to reload its batteries using its solar panels. In the dark it is able to follow tiny light sources like torches or even the flame of a match.

How does a KYTRON look?
Many people associate KYTRONs with military tanks, at least at first sight. This may be because KYTRONs have caterpillar (crawler) tracks instead of wheels.

In fact, KYTRONs have nothing to do with military equipment at all, and are definitively not armed.